package  
{
	import flash.display.MovieClip;
	/**
	 * ...
	 * @author ...
	 */
	public class Background extends MovieClip
	{
		var speedBack		:Number = 0.3;
		
		public function Background() 
		{
			
		}
		
		public function update():void 
		{
			this.x -= speedBack;
		}
	}

}